Oil-well fishing-tool



Patented Nov. 29, !898.

R. u. GREEN. OIL WELL FISHING TOOL.

(Application filed Apr. 4, 1898.)

(No Model.)

UNITED STATES PATENT FFICE.

ROBERT D. GREEN, OF CYOLNE, PENNSYLVANIA.

OlL-WELL FISHING=TOOL.

SPECIFICATION forming part of Letters Patent No. 615,162, dated November29, 1898. Application filed April 4,1898. Serial No. 676,&02. (Nomodel.)

To all whom it may concern:

Be it known that I, ROBERT D. GREEN, a citizen of the United States,residing at Cyclone, in the ccunty of McKean and State of Pennsylvania,have invented new and useful Improvements in Oil-Well Fishing-Tools, ofwhich the following is a specification.

My invention relates to improvements in oil-well fishing-tools; and itconsists of a tool aclapted to be inserted into the well for graspingrods and tubes and withdrawing them therefrom, as will be fullydescribed hereinafter and particularly referred to in the claims.

The object of my invention is to provide a socket, consisting of twolongitudinal parts, having its lower end adapted to embrace and graspthe rod or tube and a means for closing the two parts of the socketthrough the medium of the lifting pull; and it also relates to providingmeans for separating the socket and removing it from the rod or tube towhich it is attached.

In the accompanying drawings, Figure 1 is a perspective view of a toolembodying my invention. Fig. 2 is a detached View of the steer-rod fordrawing the socket together. Fig. 3 is an interior view of one part ofthe socket.

Referring now to the drawings, A indicates the two parts of thesocket,which have their lower ends hollowed out, as shown, and providedwith grasping springs or members B therein for grasping a rod or tubeover which the socket is placed. The upper ends of the two parts of thesocket are provided with abutting shoulders a and externallyscrewthreaded for the reception of a screw-threaded sleeve C. Thisscrew-threaded sleeve securely holds the upper ends of the two parts ofthe socket together and the abutting shoulders thereof in engagement,whereby the socket is securely held from separation when in operation.Situated within the socket and projecting inward is a stop D, forming aregulator to limit the distance the rod or tube shall enter the socket.

Each part A of the socket is hollowed out throughout its length, and anoperating-rod H passes within the two parts of the socket, having aspear-head I. The arms of this spearhead pass through openings J in thetwo parts of the socket.

In operation the tool is dropped in the well and over the rod or tubethat is to be drawn therefrom, the springs or members within the socketengaging the rod, and then by an upward pull upon the elevatingsteer-rod the arms of the Steer-head draw the two parts of the sockettogether. The harder the pull the more firmly is the socket closedaround the part to be withdrawn from the Well. This arrangement is veryeffective. It will be readily' understood as compared with other devicesthat are driven over the rod. My construction is also advantageousinhaving the socket formed of two longitudinal separate parts heldtogether at their upper ends by a removable sleeve, whereby when thesocket is withdrawn from the well it is readily detached from the rod,tube, or tool which it has withdrawn from the well by removing thesleeve from the upper end of the two parts of the socket, which permitsthem to be separated and readily removed therefrom, as will be readilyunderstood.

A tool of this construction is simple and effective both for graspingand holding onto the parts to be removed from the well and alsopermitting its removal from the parts after it is withdrawn. V

Having thus described my invention,what I claim, and desire to secure byLetters Patent, is-

1. An oil -well fishing-rod comprising a socket, slitted longitudiually,said socket having engaging members at its lower end, an elevating-rodpassing within the socket and having inclined arms, the two parts of thesocket having openings through which the arms pass whereby an upwardpull upon the elevating-rod will draw the socket together around thearticle to be removed, substantially as described..

2. An oil -well fishingtool comprising a socket having two longitudinalseparate portions, the upper ends of the said portions having theiradjacent edges provided with abutting members and their outer surfacesscrewthreaded, a fiange surrounding the said screwthreaded parts andbeing internally screw- ICO threaded for the purpose described, an ele-Vating-rod passing within the sooket, the e1evating-'od and the twopa'ts of the socket having nelined engaging members Whereby an Upwardpull upon the elevating-rod Will draw together the two parts of thesoeket Substantially as described.

In testimony Whereof I have hereunto set my hand in the presence of twosubsoribng witnesses.

ROBERT D. GREEN.

'witnesses:

A. WICKS, H. SHANNON.

